Sea-crossing water suspended high-speed rail tunnel structure, construction method thereof, and control method

Abstract

The invention discloses a sea-crossing water suspended high-speed rail tunnel structure, a construction method thereof, and a control method. The sea-crossing water suspended high-speed rail tunnel structure comprises a pipe body which can be suspended in water, and the pipe body is formed by a plurality of pipe sections which are fixedly connected; a reinforced concrete horizontal partition platefor partitioning each pipe section into an upper cabin and a lower cabin is fixed into the pipe section; two closed tunnels which are arrayed along the length of the pipe body are arranged in each upper cabin, and reinforced concrete fins are symmetrically arranged in the horizontal direction outside the pipe sections; steel closed tunnel shells fixed to the reinforced concrete horizontal partition plates are arranged in the upper cabins, and track beds are arranged in the steel closed tunnel shells; and transversely-arranged electromagnetic adjustment devices are fixedly connected between the two sides of the track beds and the steel closed tunnel shells, and vertically-arranged electromagnetic adjustment devices are fixedly connected between the two sides of the lower parts of the trackbeds and the reinforced concrete partition plates. The problems of design and construction of sea-crossing water suspended tunnels, the stability, durability and safety of the tunnels, and precise control over high-speed rail tracks in the tunnels are solved.

Description

technical field [0001] The invention relates to a construction, control and use method of a floating tunnel across seawater, in particular to a structure, construction and control method of a floating high-speed rail tunnel across seawater. Background technique [0002] The idea of ​​building a cross-sea vacuum super high-speed rail has been around for a long time. To achieve this goal, a safe and reliable ocean tunnel should first be constructed. [0003] At present, the existing marine tunnels are in the form of subsea tunnels. There are two construction methods: one is to dig holes in the rock layer or soil layer at a certain depth from the seabed to build a subsea tunnel (excavation method). This method has a long construction period, high construction difficulty and high project cost. Typical examples are The British-French subsea tunnel; the other is to place the segmented prefabricated cylindrical structure on the seabed surface or in the shallow soil layer to form ...

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Problems solved by technology

[0006] For a high-speed rail tunnel (single track) with an inner diameter of about 5.2m, the buoyancy is generally greater than its tunnel gravity. Therefore, for the cross-sea high-speed rail tunnel, the above-mentioned support method 1 hardly exists; while the support methods 2 and 3 are fixed by riveting cables or piles. Underwater, for the deep sea, as the aforementioned immersed tube method, the construction is almost infeasible, and there are still problems with the safety of the anchoring method and anchoring structure-the anchoring system produces vortex-induced vibration (VIV) under the action of water flow, which is very important for riveting. The fixing strength of the cable on the seabed has a great influence

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